03 04 05 06 07 08 Mazda 6 L4 Cold Air Intake Red (Included Air Filter) #Cai-mz003 Red for 2003 2004 2005 2006 2007 2008 Mazda 6 with 2.3L 4 cylinders engine (Automatic & Manual) The air intake kit can help your engine to draw more cold air resulting in better throttle response This air intake kit will increase 7-10% of Horsepower and 5-8% of Torque Easy to install and easy to fit with simple tools